水环境中镉污染处理的研究进展

镉是一种有毒的金属元素,在自然界中主要成硫镉矿而存在,由于它的难降解性,低毒性,高稳定性,以及可蓄积性,水中镉的含量与日俱增,对人类的健康造成很大的危害,目前监测水样中镉的主要方法是原子吸收法和原子荧光法。本文介绍了近年来备受关注的植物修复技术,生物去除技术,吸附法,膜分离法等物理处理技术,化学沉淀法、铁氧化沉淀法、离子交换法等化学处理技术对水中镉的去除,并对今后治理镉污染提出了建议。

Cadmium Pollution Treatment in Water Environment Research Progress

Cadmium is a toxic metal elements exist in nature mainly as sulfur cadmium ore, because of its difficult degrad- ability, low toxicity, high stability, as well as accumulation, increasing the content of cadmium in the water, to human health caused bygreat harm, the main method for monitoring water samples cadmium by atomic absorption spectrometry and atomic fluo- rescence spectrometry. This article describes the phytoremediation of concern in recent years, biological treatment technology to remove technology, adsorption, membrane separation, and other physical, chemical precipitation, iron oxide precipitation, ion exchange, such as chemical treatment of cadmium in water to In addition, and the future governance of cadmium pollution recom- mendations.